CATECHOLAMINES, FRACTIONATED, 24-HOUR URINE | |
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Test Code: S502 | Specimen Collection: Urine |
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Collection Notes: The 24-hour urine is to be collected with 25 mL of 6N HCl to maintain pH below 3. Record the 24-hour urine volume on test request form and on the urine vial. Specimen may be transported at room temperature. | |
Clinical Utility: The measurement of circulating catecholamines is useful in the diagnosis of catecholamine secreting tumors associated with hypertension. | |
CPT Code: 82384, 82570 | Testing Location: Sent to reference lab |
SPECIMEN/STABILITY TYPETemperature:24-Hour Urine with HCl (10 mL) Ambient 7 Days Refrigerated 30 Days Frozen 49 Days |